https://motherboard.vice.com/en_us/article/wjmajn/a-meteor-more-powerful-than-10-atomic-bombs-exploded-over-the-bering-sea

A meteor that exploded over the Bering Sea in December released 10 times the energy of an atomic bomb into the atmosphere.

The asteroid, which was about 10 meters wide, disintegrated in the skies off the coast of Russia’s Kamchatka peninsula on December 18. It unleashed 173 kilotons of energy, making it the second-biggest fireball in recent decades next to the 440-kiloton meteor that rocked the Russian city of Chelyabinsk on February 15, 2013.